The portable power bank is a carrier that can directly supply power or charge the product through the DC power input interface of the electronic product. Generally, lithium batteries or dry batteries are used as the storage unit, which is different from other products. The internal configuration of the battery is also external. The battery can be applied to our digital products.

     When buying a portable power bank , what basic knowledge and purchase instructions should we have?

    1. After the portable power bank is mostly a combination of lithium-ion batteries, according to relevant regulations, under normal conditions, it is repeatedly charged for about 300 times, and then there is no memory effect, which is a qualified portable power bank.

     2. There are over-charge and over-discharge protection circuits inside the portable power bank, which can have a self-protection effect on the product itself. If the current is too large or too small in a short time, it can be automatically cut off. In a short time, it can be put into normal use by self-recovery. If it is used or improperly stored to cause protection, you can also use the original charger of the portable power bank to activate it according to the relevant operations in the manual.

     3. Whether the portable power bank can be matched with the mobile phone

     Whether digital products and portable power bank can match, there are three main factors, working voltage,  working current and connecting plug, according to these 3 points to see whether it matches with your own digital products, if you match, you can do Shop.

    4. When the portable power bank is charging the mobile phone, it is not possible to remove the internal battery, and then supply power to other batteries. Please be sure to remove the built-in battery before using it.

     In fact, purchasing a portable power bank is not as complicated as we thought. It only needs to analyze according to the parameters of our digital products to see if there is a match for our own digital products, and then make a decision.